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United States Patent | 5,339,794 |
Thyssen | August 23, 1994 |
A tool 1 comprises a single rib dressing roll 5 and two semi-rib dressing rolls 10, 11 separated by spacers 13. The two flanks 31, 33 of a first lead 32 of a grinding worm 30 are dressed by the two flanks 6, 7 of the single rib dressing roll, and the two flanks 35, 38 of a second lead 36 are dressed by the two flanks 14, 16 of the semi-rib dressing rolls. Fast dressing with a long service life and a short dressing stroke are thus obtained.
Inventors: | Thyssen; Wolfgang (Bad Sackingen, DE) |
Assignee: | Reishauer AG (Wallisellen, CH) |
Appl. No.: | 157426 |
Filed: | November 26, 1993 |
Dec 10, 1992[CH] | 3774/92 |
Current U.S. Class: | 125/11.04; 451/47; 451/48 |
Intern'l Class: | B24B 053/075 |
Field of Search: | 125/11.04,11.03,11.01 51/288,206 R,206 P,206.4,207,325,287,105 GG |
4993194 | Feb., 1991 | Cadisch | 51/206. |
Foreign Patent Documents | |||
0225364 | Jul., 1985 | DE | 51/105. |
1750937 | Jul., 1992 | SU | 51/206. |